Shield for rubber tires.



D. E. WALKER.

SHIELD FOB. RUBBER TIRES. APPLICATION FILED Jun 20,1907.

Patented May 4 A dfia 7k 7 .6

. INVENTOR. Dallas E Walkzr.

ATTORNEY.

the spokes'iind 12 the rim of a bicycle Wheel. These parts may l:o nmde111 the usual we DALLAS 1*]. WALKER, OI INDIANAPOLIS, INDIANA.

SHIELD FOR RUBBER TIRES.

Specification of Letters Patent.

Patented May 4, 1909.

Application filed June 20, 1907. Serial m5. 379,891.

To all whom it may concern:

lie it koowh that I, DALLAS E. human, 01' lndinimpoiis, county ofll'lurion, and State of Indians, luwe invented a. certain new and lusel'ul Shield for llubher Tires; and I do i hereby deelnxre that thefollowii'ig is a lull, clear, inid exact description thereof,'rel'cronce being had to the accompanying drawings. in which likeletters refer to like parts. The objeetol this invention is to provide apernmncnt trend and protection for inlhited or other rubber tires thatprevents the wear on the tire, especiall during skidding of theautomobile on whiei the tire may be used, and accomplishes this objectwithout interfering with the yielding or resilient nature of the tire.It is well known to all users of automobiles that while the machineskids around the corners or in turning out of the road or depression inthe roadway, the rubber ol' the tire is Z of necessity peeled oil' andthe tire'soon injured and destroyed. In View of the ox-1 pensive natureof automobile tires, this becomes a source of considerable expense and.Furthermore, the rubber tire alone will slip when the power is turned onquickly or when the rondwuy is slippery.

' In carrying: out the object of this inrenl l l I tion I huvo provideda. se tional metal cover ing for the rubber tire that yields as therubhger tire yields, so that the yielding: and resilien't nature of thetire is not lost. This met :Il trend is provided with. ribs to prevents|ipping and skidding.

The general nature of this invention ill be understood from theoceompnnying, drawings and the following description nnd clu i m:

In the drawings Figure l is a. side clemtion of on nu'tol'uobilc wheelprovided with my invention. Fig. 2- is n. sidt (levution ol' the lowerpart of the wheel on a larger scale and showing the position of portsunder the weight of the automobile, parts being broken away. Fig. 3 is ntransverse section on the line 33 of Fig. l, shmving a. portion of th.inner surface olf't'hie wheel in perspective Fig. 4 is it centralloiuritiulimil section of it portion of the motel tread, the ends being1 broken :uvuy. Fig. 5 is n longitudinal section on the line 5 -5 ofFig. 3, ports being 1 broken away.

the drawings 10 represents the hub, 11

llponthe rim 1 secure :1 metal band or tire 13,

as shown in Fig. 3, it being preferably flat on the peri )hery of therim and provided on each lateral edge with e flange 14 that extendsinwardly at a right angle from the body 01 the bend or tire 13 and so asto hug the sides of the rim 12. The flanges 14 are therefore radial andfrom the inner edge there is a further and outwardly extending flange15. Upon the external peripheries of the flanges 15 a rubber cushion orstrip 16 is placed and then the larger sections 17 of the metal treadare secured in place by the screw bolts 18. These metal trends in crosssection are substantially semi-circular with their ends overlapping therim and with an outwardly extendin flange 19 along each inner ed e andparalle with the kni es 1 5. lhe

-bo.ts 18 extend through slots 20 in the flanges 15 of theSlittlllOIlillY band of tire 12 and screw into the flanges 19 of thesections 17 ol' the metal trend. The metal trend euvelops andv surroundsan inflated rubber tire 22, as shown in Fig. I The bolts 18 arelongenough to cause thelhtnges l9 ol'.- the metal trend to be heldconsiderably removed 1 fromlhe flanges 15, when the rubber 22 isinflated as sliown. This permits considerable play of the sides of themetal tread as the tube 22 is compressed and released.

The metal trend is made up of a number of the sections 17, secured asstated, with intervening short sections 24. These sl'iort sec lions, fitin grooves 25 in the inner surface of the sections 17 at their ends, asindiested in Fig.5. 4, so as to form flexible joints between thesections 17. This is to permit the sec.- lions 17 of the metal trend tomove inwardly toward the wheel im under pressure, as shown in Fig. 2.'llutt figure IOPIOSMflS the portion of the automobile wheel whici restson the ground under a load. it is there soon that the load hascompressed the inflated rubber tube within the trend and the trend hasmoved toward the rim to its limit, that is, by reference to Fig. I theflanges 19 on the metal trends 17 have moved toward the flanges 15 onthe stationary metal tire plate a. for as possible, the bolls INprotruding :uidthe rubber bands or gaskets 16 being compressed. As thewheel revolves further, this hugging ol' the stationary parts of thewheel by the metnl tread will proceed on around the wheel and following;the compi portion of the rubber tube tllu e.i,- nsion of the tube willforce the metal trend outward to its normal position.

fill

and that the Wear is taken up by the metal tread and that they arejointed and yieldingly mounted so as not to interfere with theresiliency of the tire construction.

I have described a wheel constructed to i embody 1n invention in what isconsidered wheel can be made new.

I do not desire to limit my invention to use with inflated rubber tiresor tubes as solid rubber tires ay be used-as well.

What I claim" as my invention and desire to secure by Letters Patent is:

The combination with a rubber tired wheel, of a metal tread thereforformed of long sections alternating with short sections the longsections in place so as to permit movement of the metal tread sectionstoward and away from the rim of the wheel as the rubber tire contractsand expands and render the. long and short sections flexible now to beits most desirable form, when the with relation to each other.

In witness whereof, I have hereunto afiixed my signature in the presenceof the witnesses herein named.

DALLAS E. WALKER.

Witnesses N. ALLnMoNe, OLIVE Bananas.

